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Isolation of erythromycins and related substances from fermentation residues of strepto.'i1yces erythreus by high-performance liquid chromatography on silica gel
(1985)
Preparative high-performance liquid chromatography on silica gel allows the isolation of erythromycins and related substances from mother-liquor concentrates. Three mobile phases were used consecutively: A, ethyl ...
Thin-layer chromatographic study of the metabolites of erythromycins in the wistar rat
(1988)
The metabolites of erythromycin A, anhydroerythromycin A, N-demethylerythromycin A and erythromycin B in the Wistar rat were studied by thin-layer chromatography. In some experiments germ-free rats, rats with a cannulated ...
Translactonization in Erythromycins
(1987)
When erythromycin A is heated in diethylamine-acetic acid. an erythromycin hemiketal is obtained, which can be further transformed into a new enol ether and spiroketal. The new euol ether is also obtained in equilibrium ...
Separation of erythromycin and related substances by high-performance liquid chromatography on poly (styrene-divinylbenzene) packing materials
(1985)
A comparative evaluation of three brands of polyrstyrene-divinylbenzene) co¬polymers, Hamilton PRP-I (10 ,um), Rogel (8 ,um) and TSK-Gel (10 Jim), as column packing materials for high-performance liquid chromatographic ...
Identification of novel erythromycin derivatives in mother liquor concentrates of streptomyces erythraeus
(1987)
The identification of five novel compounds, pseudo-erythromycin A-6,9-hemiketal, 8,9- anhydro-pseudo-erythromycin A-6,9-hemiketal, 8,9-anhydro-pseudo-N-demethylerythromycin A-6,9-hemiketal, 5-0-fl-o-desosaminylerythronolide ...